Method and machine for making paper



1,637,240- July 26 19.27 c. v. PROCTOR METHOD AND MACHINE FOR MAKINGPAPER Filed Sept. 2, 1926 Patented July 26, 1927.

PATENT OFFICE.`

CHARLES V. PROCTOR, OF BIRON, WISCONSIN.

METHOD AND MACHINE FOR MAKING PAPER.

Application led September 2, 1926. Serial No. 133,20l.

rated from the press roll, and an apparatus` .tor use in said methodwhich is applicable to the press roll and all other phases of themachine where such removal is desired.

This invention further comprehends the process ofv i'orining a narrowend ory lead strip of the moving paper web and tearing it with a slidingblade in the nature of a doctor. held against the roll to which thestrip adheres, which is shoved across and through the path of the web orstrip laterally to its direction ol motion in Such a manner that as thestri J progresses the blade tears it and dellects the end portionsthrough the positioning of the blade toward the rfelt so Athat it 'willproceed on the felt to the next roller,

-The invention further coin reheiids the provision of an ap aratus incuding means attached to a suitab e support and projecting in proximityrto the roll from which the lead is to be stripped or cut with suitableadjustable means mounted on said projecting means `which is adapted toslidahlvv receive a cutting member or doctor adapted for eulgagementwith the periphery of the roll and. 'movement transversely to thedirection of travel of the lead for cutting the lead from the surfaceot' the roll and Adirecting it. toward the felt in such a manner thatthe doctor may he applied or removed when desired after the apparatus isonce setand adjusted on the machine'. The invention comprehends numerousother objects residing inthe particular manner at carrying out themethod in constructing and operating' the apparatus, all of whicharemore particularly pointed out in the following detailed description andclaims 'ill directed to a preferred forni ot' the invention, it living'understood however that rari- Aons changes in the size, shape, und'arrangenient ot parts may be made without departing from the spiritsind scope of the invention as herein set forth.

In the drawing forming plieation: Figure l is a side elevational View ofthe improved apparatus for carrying out, the operation on the paper.machine forming the subject matter of this invention which alsoillustrates the felt and the presser :rolls with which the device isshovvin associated for convenience in illustration.

Figure is a plan View of the apparatus shovvn in Figure 1, with therolls omitted.

Figure 3 is a perspective of the knife member used in connection withthis invention which is similar to a doctor.

part of this ap- The apparatus and process of this inven i" tion isdesigned more particularly for use in conjunction with the press rollsof a paper making machine of the Fourdrinier type, but it is to beunderstood that .it may be associated with any roll of a paper makingInaehine where it is desired to remove the strip.

The felt of the paper machine is indicated at l, and the press rolls at2, which are constructed in the usual and Well known inanner, while 3indicates a suitable support forming part of the paper machine structureon which this invention isrnounted.

A suitable arm member d is attached at one end to the support 3 and atits opposite end projects in otl'set relation as shown in Figure ltoward the periphery oit the upper press roll '2 in spaced relationabove the telt l. A supporting plate 5 is formed at its rear edge withan upstanding flange 6 as shown in Figure l and Vadjacent which saidplate is formed with slotted portion 7 to receive suitable securingmeans 8 adapted to adjustabiy secure the plate in eniber on the free endof the arm 4 so that it may be moved toward or away from the peripheryot the press roll 2. The plate member 5 is formed with a rib lprojectingupwardly from its central portion as indicated at 9 and adapted to forma guide Way for the flanged edge 10 of the cutter blade 1l having theopposite free edge thereof formed with a sharpened beveled edge l2, Apair ol 4bearing brackets 13 are formed with lateral extensions 14ehaving bearing engagement with the inner edge of the flange l0 and theupper face of the eut-ter blade ll as shown in Figure l,

while the central portions are formed withk openings for removing thefitting on the studs 15 projectingr upwardly from the rib 9 andYwhichreceives threadedly a suitable nut adapted to secure the bearingbracket in position to properly tension the cutter member and bearingcontact.Y between the ends 14 and the plate member 5. The opposite endsof the bearing brackets extend through notches in the upper edge of theanffe 6 on the plate 5 in order that said brac ets will be held in rigidparallel relation durin\rr the operation of the slidable cutter mem r11. In this way adjustment of the bearing brackets can be made tocompensate for wear and retain the arts in the proper substantiallyrigid associated re lation and yet. permitting sliding movement of thecutter plate 11. This cutter member 11 is slidable across the plate 5 ina direction -transversely to the travel of the felt 1 in order to carryout the method of separating the lead strips from the paper. web and directing it toward the felt l in a manner which will be presentlydescribed. A suitable handle 16 is secured to the end of the blademember 12 and projects outwardly beyond the ends as shown in Figure 3 inorder to provide suitable means by which cutter members may be suitablyand manually manipulated in carrying out the method of this invention.

In the rear of the stripping device in the direction of movement of thefelt 1 is positioned a presser roller 17 which is journaled in the arms18 at one end thereof and adapted for riding on the felt 1 forengagement with the strip separated from the press roll 2 bv the cuttermember back onto the felt so that the same will travel along in theusual Way with this felt. The upper ends of the arms 18 are pivotallyeoiiliected to the end of arms 19 which are in turn pivotally connectedat their opposite ends to the supporting brackets 20 mounted on thesupportl 3. These links 18 and 19 which ale arranged at o posite ends ofthe rollers 17 as shown in igure 2 form toggle connections for theroller with this support 3 in which the joint is normally broken asshown in Figure 1 and through the operation of the lensioned coil spring21 normally serves to operate the arms 18 and 19 and force the roller 17toward the felt 1. The operation of this presser roller 17 is to engagethe strip as it leaves the press roll 2 through the operation of thecutter member 11 so that the roller will ride over the strip separatedfrom the press roll amlforce it back into intimate contact with the felt1.

This` apparatus is applied to a paper machine as shown in Figures 1 and2 und when the machine is started up for making the web of paper, thecutteil member 11 is inserted between the rib 9 on plate 5 and acrossthe face of the upper press roll 2, so as to engage the web of paperpassing between the press rolls and adhering to the upper roll 2 and cutand Separate a strip along one edge of the web therefrom on the face ofthe press roll 2 to form a lead strip and at the time of separating thislead strip from the web of paper to direct the same downwardlyin the se)arating operation toward the felt 1 as in ica'ted in dotted lines inFigure 2 at 22 so that the strip will return by its own weight and bygravity to the felt 1 of the paper machine and pass onwardly therewith.Ihe width ofV the strip may be determined by the adjustment ofthe blade11 through its insertion and movement across the face of the press roll2 at right angles to the direction of travel of the strip and in thisway separate and form the desired character of lead strip in themachine. I

As this cuter blade actually cuts the strip from the main web of paperon the press roll it separates the strip from the press roll' byextending between the face of the roll and the inner face of the stripand directs the strip outwardly from the face of the press roll anddownwardly through the cooperation of the action of gravity therewith-until the strip returns to the felt 1. The presser roller 17 thenengagesethe lead stri and presses the same in hrm contact witi thefelt 1. and in so doing smooths out the wrinkles formed inthe lead stripso that a substantially even and smooth lead strip is laid on said felt.

From the above description it will be readily understood that a newprocess has been provided by this statute for forming a lead strip inmaking paper and separating this lea\ strip from the web and the pressroll or other roll with which the process and apparatus is employedso'that the lead strip is returned to the felt and suitably pressed ifdesired through the operation of the roller 1T.

Having thus described the nven'tiomwhat Iclaim as new and desire tosecure by Letters Patent is 1. In combination with a paper makingmachine having a web and rolls engaging said web a support, a supportingarm rojecting from said su port, a cutter bade slidably and adjustaiilymounted on said supportin arm for contact with the periphery o said rollin a predetermined manner, a presser roller, and means movably androtatably sup orting said presser roller on said support or engagementwith said web to press a paper strip into firm engagement with said web.

2. That improvement in the'art of makin paper on a paper making machine,whic consists in directing a blade commonly, known as a. doctor acrossthe line of movement of a web of paperI and an adjacent nar' lill IBG

separating said stri from said pertnntl ilelecting it with tie nul otgravity und.

its own momentum toward the felt; und

finally engaging and pressing the saidntrip into Contact with the feltso 'that it will continue thriving with the said felt.

3. An attachment for n paper making ma.n chine comprising'a supportingarm, n plate mounted on the arm and acljnstahle'lengtli wise of saidann, a guide rib nn Suid plate, n blade having a laterally extendingflange formed on one edge mounted on the plate with the tlange engaginusaid rib, said blade being sliilnble on the plate, and clamping meansndjnstablg secnreill'o the plate :1nd engaging the ndnpted to retain theblade on the plate and prnvide n tension thereon.

An attachment for n paper mnking inneiline, comprising n supporting arm,n plate mounted on sniil arm for lengthwise adjustment, a blnfleslitlnbly mounted 0n the pl'ite, ani ineens for retaining the bladeassembled with the plate adjustable to apply a tension between the bladeand plate tor governing the sliding movement.

In testimony whereof I nllix my signature.

CHARLES V. PROCTOR.

lade und flange thereon

